Off-design performance loss model for radial turbines with pivoting, variable-area stators
Peter L. Meitner, Arthur J. Glassman, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Lewis Research Center, Propulsion Laboratory (U.S.)
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1980 - Technology & Engineering - 12 pages
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100 J Analytical 20 percent stator Analytical results predicted calculated total efficiency cific speed coefficient with stator cutback rotor design A 144 design area design rotor developed loss model direction at stations effects of stator efficiency as function equation equivalent inlet total exit static pressure experimental data extended rotor Figure 17 flow rate function of spe incidence angle incidence exponent incidence loss model kinetic energy loss mass flow mass flow rate model of reference negative incidence off-design performance loss percent of design percent stator throat performance loss model positive incidence predicted from design-rotor radial turbine rotor exit rotor loss coefficient shown in figure six stators Specific speed stator exit stator loss Stator throat area stator total-pressure ratio stator vane end-clearance stator-to-rotor throat area stators having throat tangential momentum throat area ratio total to exit turbine pressure ratio Turbine total efficiency Turbines With Pivoting vane end-clearance leakage vane-passage flow variable-area stators